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1302313013 = 3735819829
BaseRepresentation
bin100110110011111…
…1011100000110101
310100202112100121022
41031213323200311
510131343004023
6333121030525
744162322641
oct11547734065
93322470538
101302313013
11609138051
12304185445
13179a67a21
14c4d63c21
15794ea7c8
hex4d9fb835

1302313013 has 8 divisors (see below), whose sum is σ = 1338020280. Its totient is φ = 1266632640.

The previous prime is 1302313003. The next prime is 1302313039. The reversal of 1302313013 is 3103132031.

It can be written as a sum of positive squares in 4 ways, for example, as 1019333329 + 282979684 = 31927^2 + 16822^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1302313013 - 24 = 1302312997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302312982 and 1302313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302313003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127583 + ... + 137411.

It is an arithmetic number, because the mean of its divisors is an integer number (167252535).

Almost surely, 21302313013 is an apocalyptic number.

It is an amenable number.

1302313013 is a deficient number, since it is larger than the sum of its proper divisors (35707267).

1302313013 is an equidigital number, since it uses as much as digits as its factorization.

1302313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13447.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1302313013 is about 36087.5742188360. The cubic root of 1302313013 is about 1092.0397831199.

Adding to 1302313013 its reverse (3103132031), we get a palindrome (4405445044).

The spelling of 1302313013 in words is "one billion, three hundred two million, three hundred thirteen thousand, thirteen".

Divisors: 1 37 3581 9829 132497 363673 35197649 1302313013